iPhone 5S: Battery problems, Apple will replace it

Do you have problems with the battery of the iPhone 5S? An Apple spokes women has acknowledged the possibility.
A “small number” of iPhone 5S has been affected by the problem during production. Unfortunately, Apple’s quality standards have not been complied with, which results in a reduced lifespan of the battery. The affected devices – apparently just a few thousand – may have to be charged for a longer than usual period of time. O-Ton Apple told the New York Times:
“We recently discovered a manufacturing issue affecting a very limited number of iPhone 5S devices that could cause the battery to take longer to charge or result in reduced battery life. We are reaching out to customers with affected phones and will provide them with a replacement phone.”
Apple plans to exchange the relevant devices free of charge. As of now there is no official product recall in place. If your battery lasts for less than eight to ten hours, please contact Apple-Support for a replacement.